We report evidence for a planetary companion around the nearby young star HD 70573 .
The star is a G type dwarf located at a distance of 46 pc with age estimation between 20 and 300 Myrs .
We carried out spectroscopic observations of this star with FEROS at the 2.2 m MPG/ESO telescope at La Silla .
Our spectroscopic analysis yields a spectral type of G1-1.5V and an age of about 100 Myrs .
Variations in stellar radial velocity of HD 70573 have been monitored since December 2003 until January 2007 .
The velocity accuracy of FEROS within this period is about 10 m/s .
HD 70573 shows a radial velocity variation with a period of 852 ( \pm 12 ) days and a semi-amplitude of 149 ( \pm 6 ) m/s .
The period of this variation is significantly longer than its rotational period , which is 3.3 days .
Based on the analysis of the Ca II K emission line , H \alpha and T _ { \mathrm { eff } } variation as stellar activity indicators as well as the lack of a correlation between the bisector velocity span and the radial velocity , we can exclude the rotational modulation and non-radial pulsations as the source of the long-period radial velocity variation .
Thus , the presence of a low-mass companion around the star provides the best explanation for the observed radial velocity variation .
Assuming a primary mass m _ { 1 } = 1.0 \pm 0.1 M _ { \mathrm { Sun } } for the host star , we calculated a minimum mass of the companion m _ { 2 } \sin { i } of 6.1 M _ { \mathrm { Jup } } , which lies in the planetary mass regime , and an orbital semi-major axis of 1.76 AU .
The orbit of the planet has an eccentricity of e = 0.4 .
The planet discovery around the young star HD 70573 gives an important input for the study of debris disks around young stars and their relation to the presence of planets .